Performs testing, calibration, and troubleshooting of substation electrical systems using electronic test equipment (i.e. Transformer Turns Ratio (TTR) Tester, Breaker Tester, Multi-Range Voltage Detector (MRVD), phasing sticks, rotation meters, Digital Multi-Meters (DMM), and clamp-on amp meters). Installs, maintains, and repairs substation electrical equipment including circuit breakers, power transformers, transformers, Oil Circuit Breakers (OCBs), Gas Circuit Breakers (GCBs), switches, motors, battery chargers, battery banks, protective devices, electronic monitoring equipment, etc.